Dr. Song 

*Hyaluronic Acid With Vitamin C 

Professional

I like this serum i love how much is in the bottle it lasted for a long time it is clear and it does not really have a smell to it I used it the way it says to on the bottle I apply a thin layer of the serum to my face i let it dry for 10 min. that i put on a moisturizer on 

I received this product in exchange for my honest and unbiased feedback